Revert "Fix a glaring error in the logic backport of posixpath."

This reverts commit b357f2bca3, which was
never meant to go into 3.10.

Lib/posixpath.py

@@ -429,7 +429,9 @@ def _joinrealpath(path, rest, strict, seen):
         newpath = join(path, name)
         try:
             st = os.lstat(newpath)
-        except ignored_error:
+        except OSError:
+            if strict:
+                raise
             is_link = False
         else:
             is_link = stat.S_ISLNK(st.st_mode)